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Mathcad express/free trial provides incorrect solution

jwpeters
1-Newbie

Mathcad express/free trial provides incorrect solution

I try adding 355.302°F+9°F which should equal 364°F. However, mathcad keeps giving me 823.972°F. It doesn't care if I use the variables or direct numbers.

1 ACCEPTED SOLUTION

Accepted Solutions
LucMeekes
23-Emerald III
(To:jwpeters)

You're using the wrong unit for temperature difference.

Note that:

LucMeekes_0-1579821418132.png

If you add two of those, you end up with temperatures above 500 K.

Use DeltaF for adding/subtracting temperatures.

LucMeekes_1-1579821478538.png

Success!
Luc

View solution in original post

1 REPLY 1
LucMeekes
23-Emerald III
(To:jwpeters)

You're using the wrong unit for temperature difference.

Note that:

LucMeekes_0-1579821418132.png

If you add two of those, you end up with temperatures above 500 K.

Use DeltaF for adding/subtracting temperatures.

LucMeekes_1-1579821478538.png

Success!
Luc

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